Xiphophorus hellerii Heckel, 1848 (Cyprinodontiformes, Poeciliidae): new record, updated distribution, and the role of urbanization in its invasion in Brazil. - Begnini, Flavia; B. dos Reis, Renan; Lemunie, Érika Spanhol; Wolff, Luciano Lazzarini; Teixeira-de-Mello, Franco; Delariva, Rosilene Luciana (Check List, 2026)